Hi there,
Nice tour! Your image is well taken and shows off the shop well. If I was going to suggest any 'extras' it might be to consider having a text box in a pop-up window. This could explain what the shop is and what it sells. You might even want a link to the shop's website somewhere. You could have this as a clickable hotspot over an item for sale - I think this might get more clicks as, from what I've found, people find hotspots more clickable than other embedded links.
Hope this helps,
Forrest